典型舰船舱壁结构隔振优化设计

基于波动理论,探索了船体结构布置阻振质量后的振动波传递的机理,讨论了振动波入射角度、阻振质量截面尺寸对其隔振性能的影响。从阻抗失配的角度出发,开展双层壳动力舱段典型舱壁结构隔振优化设计。综合运用刚性阻振质量锯、阻振质量环路,初步给出了具有高传递损失特性的舱壁结构形式。结果表明：隔振优化设计后舱壁结构在有效降低了动力舱段结构振动与声辐射的同时,更加显著地隔离了结构噪声向邻近舱段的传递。

Vibration isolation design of typical hull bulkhead structures

Based on the wave theory,the characteristics of blocking masses attenuating propagation of the vibration wave are analyzed.The influences of wave incident angle and the sectional dimension of the blocking masses on the isolation performance are discussed.The vibration isolation design of double cylindrical shell power cabin bulkhead with blocking masses is carried out from the viewpoint of the impedance mismatch.Combining of the blocking mass serration with the blocking mass loop,the bulkhead structure with...